I've been taking it for years because my panic attacks were so bad I couldn't leave the house. It's been fantastic for me. If I take it during the day (which I usually don't) it still puts me to sleep. It's longer acting than Ativan, but in the same family. Hope this helps.
AKA Klonopin. It's a benzo like Ativan (lorazepam). Can be addictive. Because the body can adapt to it, it might take larger and larger doses to achieve the same results over time. It can also cause an opposite response from the one you are trying to get -- it can increase agitation and sleeplessness. Worked for a very short time for my son before it started being part of the problem and none of the solution.